Nemicon – Small Shaft Encoder 28S

Small Shaft type High Resolution (Outer Diameter φ28mm)

Brand : Nemicon

The Nemicon 28S Series is a compact incremental rotary encoder designed for accurate motion feedback in industrial automation and control systems. With an outer diameter of 28 mm, the encoder offers a balance between compact size and reliable performance, making it suitable for installation in motors, conveyors, packaging machines, and other automated equipment. Its solid shaft construction provides stable mechanical coupling, ensuring consistent signal output for precise monitoring of rotational movement.

The 28S encoder supports a range of resolutions to meet different motion control requirements and provides A, B, and Z phase signals for position, direction, and index detection. It is designed to deliver stable signal output at high rotational speeds while maintaining reliable operation in industrial environments. The encoder can be easily integrated with PLCs, motion controllers, and drive systems, making it a practical solution for applications requiring accurate speed and position feedback.

For more info, download our full technical spec.

Specifications

Parameter Specification
Encoder Type Incremental Rotary Encoder
Encoder Design Small Shaft Type
Outer Diameter 28 mm
Shaft Diameter 4 mm Solid Shaft
Resolution 100 to 2500 pulses per revolution (P/R)
Output Signals A, B, Z Phase
Output Type Open Collector or Line Driver
Power Supply DC 4.5 to 13.2 V depending on output type
Maximum Response Frequency 200 kHz max
Maximum Permissible Speed 6000 rpm
Operating Temperature -10°C to +85°C
Storage Temperature -30°C to +85°C
Humidity 85% RH max without condensation
Protection Rating IP50
Weight Approx. 40 g

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